[Purpose] This study examined the effects of passive lower limb and trunk exercises (PELT) and diaphragmatic breathing exercise (DBE) on intestinal motility in order to devise new techniques to effectively encourage intestinal motility. [Subjects and Methods] The subjects were 18 healthy adult males. Their peristaltic sounds were recorded at rest. Subjects then randomly received either PELT or performed DBE for 10 min, and their peristaltic sounds were recorded afterwards. Several days later, the sounds were recorded again. An electronic stethoscope with recording capability was used to record peristaltic sounds. Recorded peristaltic sounds were passed through an amplifier and a data acquisition and analysis system and uploaded to a PC. The integral of the primary frequency range of sounds; was calculated every 10 sec. [Results] Following PELT, peristaltic sounds increased significantly from the levels at rest, but significant differences between peristaltic sounds after DBE and sounds at rest were not noted. For 20 sec after either intervention, sounds increased significantly compared to the sounds at rest, but subsequently significant differences were not noted. [Conclusion] Both techniques had an immediate effect but no sustained effect. In future clinical settings, interventions should be performed several times for patients with decreased intestinal motility.